£165,000 is about $253,885. Hard to believe even a high end Heidelberg Spectralis costs that much. Make you wonder if donations are being used properly. The delivery of state of the art eye technology at the Alexandra Hospital thanks to the efforts of fund-raising volunteers will help it become one of the best in the region. The £165,000 Heidelberg Spectral Domain Optical Coherence Tomography equipment was purchased by the hospital's League of Friends. The machine scans the eye without touching it and uses reflected light to produce detailed 3D images. It will allows staff to provide ...
Purpose: To compare axonal loss in ganglion cells detected with spectral-domain optical coherence tomography (OCT) in eyes of patients with multiple sclerosis (MS) versus healthy control subjects using an artificial neural network (ANN). To analyse the capability of the ANN technique to improve the detection of retinal nerve fibre layer (RNFL) damage in patients with multiple sclerosis. Methods: Patients with multiple sclerosis (n = 106) and age-matched healthy subjects (n = 115) were enrolled. The Spectralis OCT system was used to obtain the circumpapillary RNFL thickness in both eyes. The 768 RNFL thickness measurements provided by the Spectralis OCT were performed to ...
Background/aims Spectral-domain (SD)- Optical Coherence Tomography (OCT) can track eye movements, has faster acquisition time and higher resolution than time-domain(TD)-OCT. The aim of the study was to assess the utility of SD-OCT in paediatric glaucoma and determine its agreement with TD-OCT. Methods Children who had SD-OCT(Spectralis, Heidelberg-Engineering,Germany) were retrospectively and prospectively identified from Duke paediatric glaucoma clinic. The peripapillary retinal nerve fibre layer (RNFL) and macular thickness and volume (MV) were compared amongst four groups: normal eyes, eyes with physiologic cupping (C:D >0.5 and <0.8, IOP <21), mild glaucomatous eyes (C:D ...
Purpose: To analyze posterior pole retinal thickness using the new Spectralis HRA + OCT protocol and compare two commercially available spectral-domain optical coherence tomography instruments (Spectralis HRA + OCT and Cirrus HD-OCT) in young healthy eyes. Methods: Retinal thickness in 178 young healthy eyes was measured using the volume scan mode and Posterior Pole Asymmetry Analysis of the Spectralis HRA + OCT and the macular cube 512 x 128 protocol of the Cirrus HD-OCT. Topologic differences in posterior pole retinal thickness between the two spectral-domain optical coherence tomographies were compared, and the relationship between retinal thickness and age or refractive error/axial length ...
Background : To determine the repeatability and reproducibility of optical coherence tomography (OCT) Spectralis retinal thickness measurements in diabetic patients with clinically significant macular edema (CSME). Methods : Twelve eyes of 12 volunteers (without macular pathology – control group) and 21 eyes of 21 diabetic patients with CSME were included in the study. Reproducibility, repeatability, intraclass correlation coefficients (ICCs) and intrasession correlation coefficients were tested with 20 × 15 degree raster scans consisting of 19 high-resolution line scans that were repeated three times by two experienced examiners. Results : In the control group, examining all regions, coefficient of repeatability was less than 1.1%, while ...
Purpose: To evaluate the accuracy and reproducibility of retinal thickness measurements in healthy and epiretinal membranes (ERM) eyes by Cirrus and Spectralis Fourier-domain optical coherence tomography devices. Methods: Eighty-seven ERM and 122 healthy subjects underwent 3 macular scans using both optical coherence tomography instruments. Mean thickness measurements in the nine Early Treatment Diabetic Retinopathy Study areas were compared, evaluating the repeatability and the relationship between devices. Results: Macular thickness increase was detected in ERM eyes for all optical coherence tomography parameters (P < 0.001). Mean foveal thickness was 423.5 +/- 81.4 and 438.0 +/- 54.2 [mu]m for ...
Purpose: To identify the morphologic changes secondary to macular grid photocoagulation in diabetic macular edema in vivo using spectral domain optical coherence tomography. Methods: In this prospective cohort study, 13 consecutive patients with vision loss because of clinically significant macular edema associated with diabetes mellitus Type 2 underwent grid laser treatment (PASCAL). Best-corrected visual acuity, Spectralis optical coherence tomography, infrared fundus imaging, and biomicroscopy were performed at baseline, Day 1, Week 1, and Months 1, 2, and 3 after treatment. Fluorescein angiography was performed at baseline and at 3 months. Results: Mean central 1-mm thickness decreased significantly from 438 ± 123 ...
Despite the fact that the choroid plays an important role in the structure and function of the eye, it has not been studied in detail in vivo . Improvements in optical coherence tomography (OCT) imaging technology allow the routine imaging of the choroid and deep optic nerve structures in most patients. As with any new technology, it needs validation in both healthy and diseased eyes. Reproducible measurements of choroidal and lamina cribrosa thickness are possible. Several variables such as age, axial length, and time of day, affect choroidal thickness and must be taken into account when interpreting data on choroidal thickness ...
Heidelberg Engineering. Ophthalmology Systems. Heidelberg Engineering has paved the way for quantitative retinal imaging in glaucoma management. The Heidelberg Retina Tomograph was the first instrument of its kind available on the market for the routine glaucoma exam. It follows that Heidelberg Engineering has the longest history and the most experience and knowledge of the subject. The high quality and reproducibility of our products have been proven over time by the accuracy and consistency of glaucoma follow-up exams.
The reason for this is that Heidelberg Engineering has ensured that there is a solid scientific base to all products.
The company has always been involved in basic research projects, and our technical knowledge is unsurpassed. Heidelberg Engineering is an extremely innovative company. It is the integrity of research and consistency of approach that enable our products to be used with confidence in the clinical environment. Our track record of product development is exceptional! Look at the development milestones achieved during the past 10 years.
I am becoming a big fan of spectral-domain OCT, especially Spectralis [Heidelberg Engineering, Vista, Calif.]...To this point with time-domain OCT, I have not been convinced that you can use this technology to follow patients over time. Now, with the faster image acquisition and better axial resolution we see with SD OCT, there is better quantitative peripapillary retinal nerve fiber layer measurement for glaucoma management. The improved accuracy of the OCT segmentation allows for better long-term evaluation of patients.Leon W. Herndon in Delving into glaucoma